diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 8693f84..6a80197 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -10,6 +10,7 @@ env:
   GODOT_VERSION: 4.2.2
   GODOT_STATUS: stable
   GODOT_LINUX_URL: https://github.com/godotengine/godot-builds/releases/download/4.2.2-stable/Godot_v4.2.2-stable_linux.x86_64.zip
+  GODOT_MACOS_URL: https://github.com/godotengine/godot-builds/releases/download/4.2.2-stable/Godot_v4.2.2-stable_macos.universal.zip
 
 jobs:
   smoke-test:
@@ -82,3 +83,35 @@ jobs:
           set -euo pipefail
           ./.tools/Godot_v4.2.2-stable_linux.x86_64 --headless --path . --script res://tests/test_e2e.gd > e2e-tests.log 2>&1
           cat e2e-tests.log
+
+  macos-validation:
+    name: macOS validation
+    runs-on: macos-latest
+    steps:
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+
+      - name: Download Godot
+        shell: bash
+        run: |
+          set -euo pipefail
+          mkdir -p .tools
+          curl -fsSL "$GODOT_MACOS_URL" -o /tmp/godot_macos.zip
+          unzip -oq /tmp/godot_macos.zip -d .tools/
+          chmod +x .tools/Godot_v4.2.2-stable_macos.universal/Godot.app/Contents/MacOS/Godot
+
+      - name: Verify Godot binary
+        shell: bash
+        run: |
+          set -euo pipefail
+          .tools/Godot_v4.2.2-stable_macos.universal/Godot.app/Contents/MacOS/Godot --version
+
+      - name: Run headless smoke test
+        shell: bash
+        run: |
+          set -euo pipefail
+          timeout 15 .tools/Godot_v4.2.2-stable_macos.universal/Godot.app/Contents/MacOS/Godot --headless --path . --fixed-fps 60 --quit-after 300 > smoke.log 2>&1
+          if grep -E "SCRIPT ERROR|ERROR:" smoke.log; then
+            echo "Smoke test logged an engine/script error" >&2
+            cat smoke.log >&2
+            exit 1
+          fi